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Spatially Resolved Manipulation of Single Electrons in Quantum Dots Using a Scanned Probe

DOI to cite this document:
Pioda, A. ; Kičin, S. ; Ihn, Thomas ; Sigrist, Martin ; Fuhrer, A. ; Ensslin, Klaus ; Weichselbaum, A. ; Ulloa, S. E. ; Reinwald, Matthias ; Wegscheider, Werner
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Date of publication of this fulltext: 08 Feb 2010 13:22


The scanning metallic tip of a scanning force microscope was coupled capacitively to electrons confined in a lithographically defined gate-tunable quantum dot at a temperature of 300 mK. Single electrons were made to hop on or off the dot by moving the tip or by changing the tip bias voltage owing to the Coulomb-blockade effect. Spatial images of conductance resonances map the interaction ...


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